Leaching chamber



FIG. 1 is a perspective view of a leaching chamber embodying the ornamental design of the present invention;

FIG. 2 is a side view thereof, the opposite side view being a mirror image;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken lines in FIGS. 1-5 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a leaching chamber, as shown and described. 